KOTHARI C R. (1990). RESEARCH METHODOLOGY: METHODS & TECHNIQUES (2ND.). WISHWA PRAKASHAN.
Chicago-čujuhus (17. p.)KOTHARI C R. RESEARCH METHODOLOGY: METHODS & TECHNIQUES. 2ND. MUMBAI: WISHWA PRAKASHAN, 1990.
MLA-čujuhus (9. p.)KOTHARI C R. RESEARCH METHODOLOGY: METHODS & TECHNIQUES. 2ND. WISHWA PRAKASHAN, 1990.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.